Tubbe Posted August 31, 2011 Share Posted August 31, 2011 Hi there, I completed my first "larger" project last week, a fire basket of my own design. To make the joinery more pleasing I decided from the beginning that I would punch and drift all holes. In total there are 45 rivets and thus 90 holes made. Hmm... quite a lesson in punching and drifting. Each hole was made in two heats. To fit everything I bolted the hole thing first, then removed one bolt at a time and riveted. I even had to make a simple tool to manufacture the 45 rivets. I used 5x30mm flat bar for the basket and 10mm round for the rivets. Sadly, I don't have more than this picture of the making of... The rings completed Some of the plugs from punching the slots for the holes. Finished! Quote Link to comment Share on other sites More sharing options...
Drewed Posted August 31, 2011 Share Posted August 31, 2011 That is cool! What is the overall size of the completed project? Quote Link to comment Share on other sites More sharing options...
David E. Posted August 31, 2011 Share Posted August 31, 2011 Well the time and care taken in the design and assembly shows in the finished article, lovely shape and well made, Chapeau !! Quote Link to comment Share on other sites More sharing options...
CurlyGeorge Posted August 31, 2011 Share Posted August 31, 2011 Nice work. That is a very interesting piece. When you said that you riveted it together, I mistakenly thought that you were using round rivets. From the slugs, I see that you used a flat or rectangular rivet. Was there a particular reason for choosing that type rivet? They look GREAT. Just curious. Thanks for sharing the project with us. :) Quote Link to comment Share on other sites More sharing options...
bigfootnampa Posted August 31, 2011 Share Posted August 31, 2011 George he slot punched and drifted round. You can see it in the first pic. Nice job! Quote Link to comment Share on other sites More sharing options...
Tubbe Posted August 31, 2011 Author Share Posted August 31, 2011 Hi, Thanks for the comments.What is the overall size of the completed project? I should have photographed with some reference... anyhow.. It is 85cm high and the top diameter is 40cm, and I can add that it's quite heavy. Round rivets, yes! One thing left, and that is to coat it with some fire-proof paint I guess. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 31, 2011 Share Posted August 31, 2011 Very nice indeed! Unfortunately we have burn bans a lot of the year here in the desert and that sort of thing is forbidden---unless you rig it for propane---which takes the "fun" out of it! Now do you have a large pot that fits in the top to warm wine or cook soup in? Quote Link to comment Share on other sites More sharing options...
Francis Trez Cole Posted August 31, 2011 Share Posted August 31, 2011 Great work like the design Quote Link to comment Share on other sites More sharing options...
Sam Falzone Posted August 31, 2011 Share Posted August 31, 2011 That is SWEET !!! Nicely done. Truely something to be proud of. Sam. Quote Link to comment Share on other sites More sharing options...
Randy Posted August 31, 2011 Share Posted August 31, 2011 Way to go! That's a finely designed and crafted piece! Quote Link to comment Share on other sites More sharing options...
DennisG Posted August 31, 2011 Share Posted August 31, 2011 Beautiful! very nice detail and look. gotta ask, how long it took to make? is this piece a keeper or are you selling it at a show or market, and if selling what price will it be for. I am thinking the time / price thing. Quote Link to comment Share on other sites More sharing options...
CurlyGeorge Posted August 31, 2011 Share Posted August 31, 2011 Ah, Bigfoot. I had a senior moment there. I looked at the picture but I guess it slid right off my bald head. Beautiful piece, though. Thanks for setting me straight on that. :) Quote Link to comment Share on other sites More sharing options...
brianbrazealblacksmith Posted August 31, 2011 Share Posted August 31, 2011 Very nice, Tubbe! I am happy to see you used my punch design. How did the punching go? These fire baskets were common in Eastern Europe when I was there, but they were rarely truly forged. Nice to see a forged design! Quote Link to comment Share on other sites More sharing options...
Tubbe Posted August 31, 2011 Author Share Posted August 31, 2011 gotta ask, how long it took to make? is this piece a keeper or are you selling it at a show or market, and if selling what price will it be for. I am thinking the time / price thing. Well, it's hard to say...quite a few sessions, but in total I would say around 20-30h including the rivet making tool. It's definitely something I will keep as it was never intended for someone else. Price, hmmm, expensive it is... only the material is around $100. On a market it would probably be around $1000-$1500. But seriously, if one is to make these for sale you need to tool up for the power hammer and make jigs for bending and stuff... now, every piece is hand bent without any guides, only to a simple drawing as reference.Very nice, Tubbe! I am happy to see you used my punch design. How did the punching go? These fire baskets were common in Eastern Europe when I was there, but they were rarely truly forged. Nice to see a forged design! Thanks Brian! Yes I have used your punch design, and it works very well. I punch in one heat and drift the hole in a second heat. I use 3 drifts after one another with planishing in between. I touched up the tip of the punch once with a file, but it's holding up surprisingly well although the thin tip looses harness almost immediately. I try to cool it after each or every second blow but it heats up really fast. The key is to not get stuck, and to be determined in what you are doing. One thing I was worried about was swelling or lengthening of the material and how that would affect all measurements, but actually it was really only an issue with the two upper rings. Since the upper ring only has 8 holes compared to 16 on the middle. But I made the middle ring first and compensated for the 1.4 cm lengthening I got from the 16 holes. I wonder if it's possible to punch and drift holes with greater accuracy, I mean with no length wise swelling? Hmm, I have some additional pictures to show, but I am unable to upload... weird. I get "This upload failed" or "Upload Skipped (Error500)"... what is going on? And thanks again for all warming comments! Quote Link to comment Share on other sites More sharing options...
Frosty Posted August 31, 2011 Share Posted August 31, 2011 Very nice work! I've always liked this type brazier. Once folk get a look you're likely to be swamped with orders. Well done. Frosty the Lucky. Quote Link to comment Share on other sites More sharing options...
brianbrazealblacksmith Posted August 31, 2011 Share Posted August 31, 2011 Hofi has some really good things to say about slitting and drifting where you are concerned with the growth due to punching or slitting and drifting. The information was in the old blueprints. Quote Link to comment Share on other sites More sharing options...
DennisG Posted August 31, 2011 Share Posted August 31, 2011 forgot to ask, whats this riveting tool you speak of? pics and explanation on use and making? Thanks BTW, that would be cool for camping Quote Link to comment Share on other sites More sharing options...
jeremy k Posted August 31, 2011 Share Posted August 31, 2011 I was always told that during the slitting or punching a slot, that the parent mat'l should not lengthen or shorten during the final drifting to size the hole. With that being said, what I mean is - the length of the slit or punched slot should be (roughly 1/2 the circ.) the correct length vs. the circumference of the final sized hole. Quote Link to comment Share on other sites More sharing options...
Tubbe Posted August 31, 2011 Author Share Posted August 31, 2011 With that being said, what I mean is - the length of the slit or punched slot should be (roughly 1/2 the circ.) the correct length vs. the circumference of the final sized hole Well, I thought that too for a while, but actually in this case the slot should be the same length as the diameter of the finished hole, i think. As you drift the material outwards only, the length should stay the same, in theory... but in reality for the holes I made here I got lengthening by ~0.8mm for each hole. Not much, but can be an issue in some cases. Quote Link to comment Share on other sites More sharing options...
jeremy k Posted August 31, 2011 Share Posted August 31, 2011 In some cases, you need to retain the same (or as close as you can) cross section for strength, this is why the pre-drift slot is important, (so you do not stretch the sides to thin during the drifting). Quote Link to comment Share on other sites More sharing options...
beth Posted September 1, 2011 Share Posted September 1, 2011 thats lovely tubbe! really sweet shape, and like someone else said - how fab to see it forged rather than just slung together from nothing. very beautiful, will look even yummier with some hot orange flames in it love all the rivets. Quote Link to comment Share on other sites More sharing options...
aquamanlr Posted September 1, 2011 Share Posted September 1, 2011 I would like to say that is a nice piece of work !! Great design and assembley. LeeRoy Quote Link to comment Share on other sites More sharing options...
Tubbe Posted September 1, 2011 Author Share Posted September 1, 2011 Thanks for all kind words. Wire weeled and painted today! Added the hammer for reference. I thought I'd share the initial design. Since I work with 3d computer graphics professionally I tend to play around with ideas. This is what I came up with then. Pretty close to the end result.forgot to ask, whats this riveting tool you speak of? pics and explanation on use and making? Here is the tool. Nothing fancy, just two pieces of steel connected with a bit of spring-steel and a suitable hole drilled deep enough to make the rivet stock extend 1,5 diameter above for the head. Quote Link to comment Share on other sites More sharing options...
freeman Posted September 1, 2011 Share Posted September 1, 2011 Fantastic work! Well conceived and well executed! One question, what size slitter did you use to start your holes? Edit: And what size rivets? Guess that's two questions. Quote Link to comment Share on other sites More sharing options...
Tubbe Posted September 1, 2011 Author Share Posted September 1, 2011 Thanks freeman. I have used a slot punch, which makes 10x3mm holes. I then drift to 10mm round for the rivets. Quote Link to comment Share on other sites More sharing options...
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